SKU: IR511060AFM / UPC: 191070005696
Cometic Nissan RB25 2.5L Lower Intake Manifold Gasket Precision Seal for RB25DET Engines
The Cometic Nissan RB25 2.5L Lower Intake Manifold Gasket is engineered for seamless integration with high-performance RB25DET setups in Nissan Skyline models. This gasket delivers consistent vacuum retention and heat resistance in demanding conditions, ensuring your inline-six runs without interruptions from manifold leaks. Built with advanced materials that handle extreme engine bay temperatures and pressures, it stands as the reliable option for enthusiasts rebuilding or upgrading RB25 engines, preventing common issues like air leaks that plague lesser alternatives.
Why This Gasket Fits Your Build
The IR511060AFM uses Aluminum Foamette (AFM) construction an aluminum core bonded to a compounded nitrile synthetic rubber layer with an 85% blow rate for enhanced conformability and recovery. This design maintains bolt torque while sealing irregular surfaces, offering longer service life compared to traditional paper or multi-layer steel gaskets. It withstands temperatures exceeding 250°F, making it suitable for turbocharged applications where stock gaskets often fail prematurely.
Complete Purchase Details
- 1 x Cometic Lower Intake Manifold Gasket – Single-piece design for straightforward installation on the lower plenum side.
- Part Number: IR511060AFM
- UPC: 191070005696
- Material: Aluminum Foamette (AFM) with nitrile rubber coating
- Thickness: 0.060 inches (1.5 mm)
- Bore Compatibility: Matches stock RB25 2.5L intake port dimensions for direct replacement
No additional hardware or adhesives required installs with standard torque specs for RB25 manifolds.
Vehicle Fitment
Compatible with:
- Make: Nissan
- Engine: RB25DET 2.5L Inline-6 (turbocharged)
- Models:
- Skyline R32 GTS/GTS-t (1989–1994)
- Skyline R33 GTS/GTS-t/GT-T (1995–1998)
- Skyline R34 GTS/GTS-t/GT-T (1999–2002)
- Position: Lower intake manifold (plenum to head)
Verify your engine code (RB25DET) for exact match not intended for non-turbo RB25DE variants.
Packaging and Shipping Information
- Part Weight: 1 lb
- Shipping Box Dimensions: 23 in x 5 in x 0.5 in (compact envelope-style packaging for efficient transit)
Equip your Nissan Skyline RB25DET with the Cometic IR511060AFM today for a leak-free intake system that supports peak power delivery. Order now and experience the difference in reliability for your JDM build.





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